Earth-drill.



J. D GOPLEN.

EARTH DRILL.

APPLIGA'I'ION FILED OCT. 28. 1909.

9 75,G2Q, Patented N0v.8, 1910.

Arne r on.

JOHN D. oornnn, or GLOBE, earzonarnrmrrony.

EARTH-DRILL. I

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed October 28, 190i). Serial No; 525,108.

To all whomit may congern:

Be it k'nownth'at I, JOHN D. CorLnN, a

' citizen of the United States, residing at Globe, in the county of Gilaand Territory of Arizona, have invented a new and useful Earth-Drill, ofwhich the following 15 a specification.

This invention has for its object to pro vide an earth-drill especiallyadapted for drilling wells for irrigation-and other purposes, n certainarid sections of the United 1.

States inwhich"the soil possesses certain characteristics which preclude1ts be ng bored by an ordinary earth auger or, drill;

and also to provide a simple, inexpensive anddeasily operated drill fordrilling deep or shallow holes in soil, clay, coal deposits,

sand, gravel, shale, sandstone, soapstone, or

other soft'de'posits. H v

Another object of the inventlon is to provide a drill which may be usedfor prospecting purposes.

With the herein statedobjectsin yiew, the

invention consists in a novel construction and arrangement of parts tobe herelnafter described and clalmed, reference be1ng had .to thedrawing hereto annexed in which Fi ure 1 is an elevation of-ithe-drillin positlon for use. -Fig. 2 is a transverse section on the line 22 ofFig. 1. Fig. 3 is an elevation of the drill bit. Fig. 4 a bottom planviewof the bit. Ijig. 5 is a section on the line 5-5 of Fig. 4-.

Referring to the drawing the drill-bit comprises a cylindrical body 10which is tubular for a portion of-its length, the bore 11 openingthrough its upper end. This end of the bit also has a portion which isreduced in thickness, and exteriorly screwthreaded as indicated at'lQfor connection of an operatingrod or stem 13. The lower end of the bitbody is made solid, and formed with curved wings 14 radiating froma'commoncenter, the latter being the axis of the bit. The tip of thewings project slightly beyond the circumference of the bit body toprovide a propenclearance for the bit, and they are brought to an edge,the

latter extending parallel to the bit axis. The lower .ends of the wingsare also brought to an edge, as indicated at 15, said edges lying in acommon plane, and joining the vertical edges or tips of the wings by aslight curve.

In the lower end of the bit body is'an bular drill rod or stem 13 whichis screwed f on the upper screw-threaded end 12. Tothe drill rodis'clamped a hand wheel 18 for rotating the bit. In the hub -of the handwheel is secured by a spline, or otherwise,.a split sleeve 19 whichencircles the drill rod and is clamped thereonto by a bolt 20 passingthrough opposite ears'21 on the split ends "of the sleeve. -To the upperend of the drill rod is fastened a yoke 22 to which is connectedby meansof a swivel 23 a hoisting line 24 passing; over a pulley 25 suspendedfrom a tripod Q6, and wound on a drum 27 carried by the, latter. Thehoisting line is provided for raising and lowering the drill rod andbit. As the bit descends intothe ground, the split sleeve 19 is loosenedto re adjust the hand wheel 18, and other drill rod sections are addedas needed. "The bit isrotated in the direction of the arrow dis-, playedin connection with. Fig. 4 of the drawing,-so that the convex surface ofthe wings is presented in the direction of rotation. It will be notedthat by rotating the bit in this direction, there is'no cut-ting actionby the vertical edges or tips of the wings, but that the soil is pressedoutwardly from the axis of the drill,.and compacted or compressed toform the wall of the drill hole. The lower .edges 15 of the wings loosenup the soil by a scraping action, and the soil then passes up intothespaces between the wings, to be forced outwardly by the convex curvedsurfaces thereof, as well as by the tapered lower ends 15v of the bitbody. The opening 16 is provided for supplying water to the drill'hole,which is es sentia in some cases by reason of the characteristics of thesoil, the latter by being moistened more readily lending itself to the 77 into the] bore 11 through the opening 16,

' hoist up except samples that may be -required, and the compressionoffthe wall of from which it may be removed by an ordinary sand pump orbailer.

The principal uses for whichthe drill is adapted are sinking for water,or oil, sampling soils, and for testing the quality and quantity ofmineral deposits, and also for drilling post holes, etc. The drill bitoperates by compressing the matter displaced by the wings, so that thereis nothing to the drill hole renders a better and safer hole and it willbe less liable tocave in. The bit settles or lowers by its ownweight,,it always being-rotated in-the direction stated,

except at the time of taking a sample.

Instead of being If the drill is used in sinking for water, it maybe.desi'rableito leave the bit as well as the tubular drill rods stand,using the lat- ,ter as a well casing, into which the water" flowsthrough the opening '16. The drill hole [may also be cased in theordinary manner.

What is claimed is:

-1. Inan earth drill, a bit comprising a hollow body having an openingat its lower end, and provided at said end with curved radial wings, theaforesaid opening communicating at oneend with the space ,between saidwings, and at the opposite end communicating with the bore of the bitmanually operated by l the hand wheel 18," the drill may be operated bya motor, or by horse-power.

body, tubular op'eratingrods connected to the bit body, and means forrotating the bit in either direction, rotation of the bit with theconvex surface of the wings pre vsented in the direction of rotationcompress- 40 ing the wall of the-drill hole, and rotation in theopposite direction forcing the drillings'into the bore of the bitthrough the aforesaid opening.

2. In an earth end, and provided at said end with curved" radial wings,the aforesaid opening communicating at one end with the space between apair of said wings, and at the op- 50.

posite end communicating with the bore of the bit body, andYthe endof-the bit body between the other wingsbeing tapered, tubular operatingrods connected to the bit body, and means for rotating the bit in eitherdirection, rotation of'thebit with the convex surface of the wingspresented in the direction of rotation compressing the wall of the'drillhole, andirotation in the opposite direction forcing the drillings intothe JOHN D. coPn N.

' Witnesses: I I

' WILLIAM MILLER,

C. E. DOYLE.

drill, a bit comprising 5] hOHQW body having 'p g at its lower

